tire pressures

Doug I · #1 (**permalink**) 10-30-2007, 10:58 AM

General consensus seems to be that mid to high 20's is a good starting point for road and cruisin' pressures.

For track use use a "higher" pressure

an aside ..... even though they are in their late 70's my folks still take their MG-GTB out for track days. Run 28 all around for the street but up that to ~40 for the track. That takes most of the 'squish' out of the tires .....

I don't think anyone can say 'thou should run X pressure in thee tyres' as there are just too many differences between tyres, roads, cars and even our butts. Everyone can say what works for them and each of us then goes from there to find what works for us.

Something I've been thinking about while reading thru this .... BFG's have a reputation for not being the most round of tyre, nor the most balanced within their construction. Those who used a Hunter load balancer on those BFG's noted an improvement in steering, which no pressure adjustment would fix.

I'm looking forward to running a set of BigLetters - maybe with 4 wooden blocks and low-profile jack I can borrow Jamo's while he's not looking

Doug

Speedysnake · #2 (**permalink**) 10-30-2007, 11:11 AM

Doug I,

I can confirm your thoughts on the BFGs, the front tires were replaced on mine under the tire warranty because the BFG dealer couldn't balance them. As they are now, the tire shop says it's the best they can do without adding weights to the outer rim (might try that soon). They did the Hunter "road force" balance and made me a believer. Since then I've tried various air pressures and found that the lower (22 lbs) air pressure in the front tires "masks" the out of round / balance of the BFGs for highway cruising. Another issue with the BDR is the solid steering column. I'm told that the addition of a flex or "rag" joint in the column would help a lot.

Another problem I'm having with the BFGs - I can't wear the %$#&^*@ things out

rdorman · #3 (**permalink**) 10-30-2007, 11:21 AM

I feel your pain Speedy. Never liked the BFG's. I run the yoko's currently, just for crusing around, at 22 and 24 (rear, 45-55% split a$$ heavy with me and normal load). Up to about 26 all around for autox and such. That road force balancing on the latest hunter machines, so long as the tire jocky knows what they are doing, it great, absolutely great. Once they got done, one tire required no wieght, the others only a tiny bit and none needed on the outside.